Doorframe



J. RASKIN DOORFRAME March 18, 1952 2 SHEETSSHEET 1 Filed May 29, 1948 INV EN TOR. JOSEPH RASKIN AT-TUENEY J. RASKIN March 18, 1952 DOORFRAME 2SHEETSSHEET 2 Filed May 29, 1948 INVENTOR. JOSEPH RASKIN ATZUENEYPatented Mar. 18, 1952 UNITED STATES PATENT OFFICE DOORFRAME JosephRa'skin, Brooklyn, Y. Application May 29, 1948, Serial No. 3 .5119

This invention relates to aperture frames and more particularly toprefabricated metallic door frames.

I One object of the invention is a simple prefabricated aperture framesuitable for. industrial applications.

A further object of the invention is to provide a simple prefabricatedaperture frame which may be readily assembled without the aid of specialtools or machinery.

Still another object of the invention is a prefabricated aperture framewhich may be installed with a minimum of alignment checks.

v The invention also has for an object a method of producing andassembling the aperture frame.

To these and other ends, the invention consists in the construction,arrangement, and usage for the attainment of the above stated objects.

These and other objects of the invention and the means of theirattainment will be more apparent from the following detailed descriptiontaken in connection with the accompanying drawings illustrating oneembodiment by which the invention may be realized and in which:

Fig. 1 is a view in front elevation showing the door frame of thisinvention and the relationship of the structural members.

Fig. 2 is a view in side elevation showing the door frame and therelationship of the structural members.

Fig. 3 is a section view in side elevation in the plane indicated by theline 3-3 of Fig. 2 looking in the direction of the arrows.

Fig. 4 is a fragmentary isometric View showing a typical member joint inthe assembled but unlocked position.

Fig. 5 is a fragmentary isometric view showing an alternativeconstruction, in unlocked and disassembled condition.

Fig. dis a fragmentary isometric view of the alternative constructionshown in Fig. 5, assembled but unlocked.

With reference to the drawings, similar reference characters refer tosimilar parts throughout.

Referring now to Figs. 1, 2, 3, and 4, a formed sheet metal structuralmember I0 is supported by two vertical formed sheet metal structuralmember jambs i2 and I3. Supporting plates M and i5, each provided withtwo formed slots it, are rigidly fastened by spot welds, screws, bolts,rivets, or other means, to the inside of the upper end of surfaces l1and it of the vertical member .jambs l2 and E3. The vertical member jambI2 is cut at an angle of forty-five degrees from the surface i8, as atIE, to form one half of the door frame corner joint.

The structural member l0 containsinsert tabs it which are. fitted intothe formed slots 16 of the supporting plate IA. The ends of the formedstructural member I'll, with the exception of the insert tabs 20, arecutsquare and butt up against the supporting plates. [4, and 15 foradditional strength and rigidity-when assembled.

The vertical member jamb l2 contains insert tabs '22 which arepositioned for alignment with the formed slots 24, which are located insurface 33 of the structuraljmemb'ejr H1, After locating the four inserttabs '20 and 22 in their respective formed slots l6 and 24, theinsert,tabIS. 20 are deformed upward against the supporting. plate isthereby effectin a tight, joint, betweenthe square end of the structuralmember ['0 and the supportingplate M, The insert tabs 22 are thendeformed downward and outwardja'gainstsurface 38 of the structuralmember It! thus effecting a tight joint between the upper inner portionI!) of the vertical member jamb l2 and the, formed structural member It.The vertical member jamb i3 is fastened to the structural member Ill ina like manner.

A tread spacer 26 is employed to effect parallelism of the two memberjambs I2 and I3. An angle plate 28 is positioned and firmly secured asby spot welds, bolts, screws, or other suitable means to surface 40 ofthe vertical member jamb 2. The horizontal portion 36 of the angle plate28 extends inwardly and contains a cutout insert tab 39 which ismutually perpendicular to the two surfaces of the angle plate 28. Asimilar angle plate 29 is fastened to the vertical member jamb l3. Anangle bar 32, located in an inverted position (see Fig. 2), is formedwith slots 34 which are located along the angle edge and are positionedfor alignment with the cutout insert tabs 36. After assembly of theangle plates 28 and 29 and the angle bar 32, the cutout insert tabs 30which extend through the formed slots 34, are deformed downward over theangle bar 32. The angle bar 32, if desired, may be removed after thedoor frame has been properly positioned.

Referring now to Figs. 5 and 6, an alternative method of joining thestructural members I I0 and H2 is illustrated. Insert tabs 44 arepositioned on the structural member I Ill for alignment with the formedslots 46 which are located in the upper surface 4| of the member jamb I[2. In like manner, insert tabs 42 are located on the upper end of thevertical member jamb H2 for alignment with the formed slots 48 which arelocated in surface 55) of the structural member H0.

With the exception of the insert tabs 44, the

ends of the structural member I H] are cut square and butt up againstthe inner surface of the vertical member jamb H2 when assembled. Theupper inner portion of the vertical member jamb I I2 is cut at aforty-five degree angle to form the fitted joint.

Once again, the insert tabs t2 and 54 are inserted in their respectiveformed slots 46 and 48. The insert tabs 42 are then deformed downwardlyand outwardly against surface 50 while the insert tabs 44 are deformedupwardly and inwardly against the outside of surface 4|. In this manner,an efiective joint of the formed structural members H9 and 1 I2 isproduced.

By means of either of these two unique methods of forming an apertureframe corner joint, a considerable misalignment of members cannot causea clear unsightly'space to appear at the joint. At the same time, thisconstruction affords the maximum of rigidity and strength while stillretaining the simplicity of assembly.

Various modifications will occur to those skilled in the art in. thestructural features of the aperture frames as well as the dispositionand configuration 0f the various members going to make up this inventionas a whole as well as in its several parts and no limitation is intendedby the foregoing description, specification, or illustrations in theaccompanying drawings, except as indicated in the appended claim.

What is claimed is:

A prefabricated aperture frame of sheet metal assembled without the aidof special tools, including in combination, a lintel, including a topwall, side walls and a lower wall including a door stop formed withsquare ends and tabs projecting longitudinally from the ends, andfurther formed with slots in its lower wall adapted to receive tabs, twoside members, each formed with mutually facing walls including doorstops, a front side wall, a rear side wall and a back wall, the facingwalls and door stop at the top terminating short of the top of the sidewalls, the ends of the lintel lying between the front and rear sidewalls of the members, said facing walls formed with tabs at their upperends lying in the slots of the lower wall of the lintel, plates, onepositioned between the front side Wall and the rearside wall of each ofthe members and attached to the back walls thereof, said plate formedwith slots in which lie the tabs of the lintel, all of said tabs beingbent over against adjacent surfaces whereby the lintel and the sidemembers may be shipped disassembled and assembled at the place of use,and means for retaining the lower ends of the side members in spacedrelation.

JOSEPH RASKIN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 921,743 Rudolph et al May 18,1909 1,063,517 Ellis June 3, 1913 1,600,981 Goddard Sept. 28, 19261,606,780 Zahner et al Nov. 16, 1926 1,837,748 Baum Dec. 22, 19312,043,174 Jacobson June 2, 1936 FOREIGN PATENTS Number Country Date508,590 Great Britain July 4, 1939

